HAND-HELD DRILL GUIDE FOR DRILLING STRAIGHT HOLES ALL THE TIME. MILESCRAFT DRILL BLOCK DRILLING JIGMilescraft Drill Block Drilling Jig. Stop drilling crooked holes and start using a DrillBlock+. This lightweight, durable, hand-held drill guide is packed with features that make it simple to put a perfectly straight hole into any shape of stock or type of material.Hardened Steel Bushings Nine bushings matching today?s most common drill bit sizesMulti-Axis Centering Lines Built-in vertical and horizontal centerlines for accurate drill guide alignmentV-Groove Channel Rubber coated V-groove for drilling on cylindrical stock or cornersMore Grip Improved surface grip with even more non-slip surfaces, including the expanded v-groove channelErgonomic Design Patented design conforms to grip for comfort during use